Systems and methods for phase noise tracking reference signal sequence generation using demodulation reference signals

A method by a wireless transmitter in a cellular network for transmitting a phase noise tracking reference signal (PNT-RS) together with a data transmission, the method comprising:

• using a demodulation reference signal (DMRS) of a first resource element in a subcarrier for generating the PNT-RS in a second resource element of the subcarrier, wherein the DMRS is assigned to an orthogonal frequency division multiplexing (OFDM) symbol, and wherein the first resource element is the resource clement intersecting, the subcarrier assigned to the PNT-RS and the OFDM symbol assigned to the DMRS;
• and
• transmitting the data transmission, the DMRS and the PNT-RS to a wireless receiver.

A method by a network node in a cellular network for transmitting a phase noise tracking reference signal (PNT-RS) together with a data transmission, the method comprising:

• using a demodulation reference signal (DMRS) of a first resource element in a subcarrier for generating the PNT-RS in a second resource element of the subcarrier, wherein the DMRS is assigned to an orthogonal frequency division multiplexing (OFDM) symbol, and wherein the first resource element is the resource element intersecting the subcarrier assigned to the PNT-RS and the OFDM symbol assigned to the DMRS;
• and
• transmitting the data transmission, the DMRS and the PNT-RS to a user equipment.

A user equipment in a cellular network for transmitting a phase noise tracking reference signal (PNT-RS) together with a data transmission, the user equipment comprising a transceiver, a memory, and a processor, the user equipment configured to:

• use a demodulation reference signal (DMRS) of a first resource element in a subcarrier for generating the PNT-RS in a second resource element of the subcarrier, wherein the DMRS is assigned to an orthogonal frequency division multiplexing (OFDM) symbol, and, wherein the first resource element is the resource element intersecting the subcarrier assigned to the PNT-RS and the OFDM symbol assigned to the DMRS;
• and
• transmit the data transmission, the DMRS and the PNT-RS to the network.